0 Who was the first African-American Supreme Court Justice? Thurgood Marshall Clarence Thomas W.E.B. Du Bois Frederick Douglass Play Now More questions Until the 50s, stop signs were what color? Play Now In which year did John Glenn become the first American to orbit the Earth? Play Now Enter your email to see the answer! By subscribing to TriviaTalent you are agreeing to our Privacy Policy and Terms of Use. See Results